Ricoh D124-17 Service Manual page 680

6. Troubleshooting
No.
5 OCFS 4 (M)
6 OCFS 5 (Y)
7 Air Sensor: K1
8 Head Thermistor (K2)
9 Air Sensor: K2
10 Head Thermistor (C)
11 Air Sensor: C
12 Air Sensor: Y
13 Air Sensor: M
678
Component
On Carriage Filler Sensor M. The on-carriage sensor that
monitors the position of the feeler arm on the side of the M ink
sub tank. The movement of this sensor is used to signal low ink
in the M sub tank.
On Carriage Filler Sensor Y. The on-carriage sensor that
monitors the position of the feeler arm on the side of the Y ink
sub tank. The movement of this sensor is used to signal low ink
in the Y sub tank.
Detects excess air in the K1 ink sub tank of the K1 print head
unit.
Monitors the temperature of the black print head unit (K1).
Detects excess air in the K2 ink sub tank of the K2 print head
unit.
Monitors the temperature of the color print head units.
Detects excess air in the C ink sub tank of the C print head unit.
Detects excess air in the Y ink sub tank of the YM print head
unit.
Detects excess air in the M ink sub tank of the YM print head
unit.
Function